18521280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:191

約数の個数: 168

約数和(自身を含む): 65379600

約数和(自身を除く): 46858320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 59, 60, 64, 72, 80, 90, 96, 109, 118, 120, 144, 160, 177, 180, 192, 218, 236, 240, 288, 295, 320, 327, 354, 360, 436, 472, 480, 531, 545, 576, 590, 654, 708, 720, 872, 885, 944, 960, 981, 1062, 1090, 1180, 1308, 1416, 1440, 1635, 1744, 1770, 1888, 1962, 2124, 2180, 2360, 2616, 2655, 2832, 2880, 3270, 3488, 3540, 3776, 3924, 4248, 4360, 4720, 4905, 5232, 5310, 5664, 6431, 6540, 6976, 7080, 7848, 8496, 8720, 9440, 9810, 10464, 10620, 11328, 12862, 13080, 14160, 15696, 16992, 17440, 18880, 19293, 19620, 20928, 21240, 25724, 26160, 28320, 31392, 32155, 33984, 34880, 38586, 39240, 42480, 51448, 52320, 56640, 57879, 62784, 64310, 77172, 78480, 84960, 96465, 102896, 104640, 115758, 128620, 154344, 156960, 169920, 192930, 205792, 231516, 257240, 289395, 308688, 313920, 385860, 411584, 463032, 514480, 578790, 617376, 771720, 926064, 1028960, 1157580, 1234752, 1543440, 1852128, 2057920, 2315160, 3086880, 3704256, 4630320, 6173760, 9260640, 18521280]

約数ペア:

[(1, 18521280), (2, 9260640), (3, 6173760), (4, 4630320), (5, 3704256), (6, 3086880), (8, 2315160), (9, 2057920), (10, 1852128), (12, 1543440), (15, 1234752), (16, 1157580), (18, 1028960), (20, 926064), (24, 771720), (30, 617376), (32, 578790), (36, 514480), (40, 463032), (45, 411584), (48, 385860), (59, 313920), (60, 308688), (64, 289395), (72, 257240), (80, 231516), (90, 205792), (96, 192930), (109, 169920), (118, 156960), (120, 154344), (144, 128620), (160, 115758), (177, 104640), (180, 102896), (192, 96465), (218, 84960), (236, 78480), (240, 77172), (288, 64310), (295, 62784), (320, 57879), (327, 56640), (354, 52320), (360, 51448), (436, 42480), (472, 39240), (480, 38586), (531, 34880), (545, 33984), (576, 32155), (590, 31392), (654, 28320), (708, 26160), (720, 25724), (872, 21240), (885, 20928), (944, 19620), (960, 19293), (981, 18880), (1062, 17440), (1090, 16992), (1180, 15696), (1308, 14160), (1416, 13080), (1440, 12862), (1635, 11328), (1744, 10620), (1770, 10464), (1888, 9810), (1962, 9440), (2124, 8720), (2180, 8496), (2360, 7848), (2616, 7080), (2655, 6976), (2832, 6540), (2880, 6431), (3270, 5664), (3488, 5310), (3540, 5232), (3776, 4905), (3924, 4720), (4248, 4360)]